digraph G {
	 ratio = fill;
 rankdir=LR
	node [style=filled];

I->J
A->{B C D E F G H}
K->X
L->{U W Y}

verticalorder->isNotDefinedNorPreserved
horizontalOrder->isDefinedAsLeftIsFirstAndRightIsSecond
cyclical1->cyclical2
cyclical1 [label="cyclical"]
cyclical2 [label="cyclical"]

Long1->Long2

left->right
first->second

key->value

}